A head-mounted display, unlocking method, and non-transitory computer readable storage medium thereof are provided. The head-mounted display generates a wearing position distribution based on a plurality of real-time images including a user wearing at least one wearable device on at least one finger position, wherein the wearing position distribution indicates a wearing position of the at least one wearable device wear worn by the user. The head-mounted display generates an unlocking signal to unlock the head-mounted display based on the wearing position distribution.